Which gas is released when we exhale?
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Sodium
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Nitrogen
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Carbon dioxide
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Helium
Which gas smells like rotten eggs?
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Helium
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Oxygen
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Hydrogen Sulfide
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Hydrogen
Which gas is used in fire extinguishers?
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Lithium
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Hydrogen
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Carbon dioxide
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Argon
Which noble gas glows red-orange in signs?
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Hydrogen
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Neon
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Carbon dioxide
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Nitrogen
Which gas is used to fill electric bulbs?
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Hydrogen
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Argon
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Nitrogen
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Oxygen
Which gas is poisonous and has no smell?
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Carbon Monoxide
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Oxygen
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Helium
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Hydrogen
Which gas is used in fizzy drinks?
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Helium
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Hydrogen
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Carbon dioxide
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Carbon
Which gas causes global warming the most?
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Hydrogen
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Lithium
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Neon
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Carbon Dioxide
Which gas is known as laughing gas?
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Nitrous oxide
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Helium
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Nitrogen
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Hydrogen